她四十岁时已经是一位成功的银行家了。

She was a successful ___banker by the time she was forty.

他在一家大型投资银行担任银行家。

He works as a ___banker at a major investment bank.

这位银行家帮助公司获得了一笔用于扩张的贷款。

The ___banker helped the company secure a loan for expansion.